/*
 * Copyright 2017, The Android Open Source Project
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 *      http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */

package com.wk.jetpackdemo.db.entities;

import android.arch.persistence.room.ColumnInfo;
import android.arch.persistence.room.Entity;
import android.arch.persistence.room.ForeignKey;
import android.arch.persistence.room.PrimaryKey;
import android.arch.persistence.room.TypeConverters;
import android.support.annotation.NonNull;

import java.util.Date;

@Entity(foreignKeys = {
        @ForeignKey(entity = Book.class,
                parentColumns = "id",
                childColumns = "book_id", onDelete = ForeignKey.SET_NULL, onUpdate = ForeignKey.SET_NULL),

        @ForeignKey(entity = BookUser.class,
                parentColumns = "id",
                childColumns = "user_id", onDelete = ForeignKey.SET_NULL, onUpdate = ForeignKey.SET_NULL)},
        tableName = "loan")
@TypeConverters(DateConverter.class)
public class Loan {
    // Fields can be public or private with getters and setters.
    @PrimaryKey
    @NonNull
    public String id;

    public Date startTime;

    public Date endTime;

    @ColumnInfo(name = "book_id")
    public String bookId;

    @ColumnInfo(name = "user_id")
    public String userId;

    @Override
    public String toString() {
        return "Loan{" +
                "id='" + id + '\'' +
                ", startTime=" + startTime +
                ", endTime=" + endTime +
                ", bookId='" + bookId + '\'' +
                ", userId='" + userId + '\'' +
                '}';
    }
}
